The invention is an apparatus and a process for treating biomass bearing material including municipal solid waste (MSW). The apparatus includes a reaction vessel held at an angle and configured for rotation and steam injection, with helically arranged internal flights, a self-aligning door closure,
The invention is an apparatus and a process for treating biomass bearing material including municipal solid waste (MSW). The apparatus includes a reaction vessel held at an angle and configured for rotation and steam injection, with helically arranged internal flights, a self-aligning door closure, and a swing-away door assembly. It also includes a novel structure for shredding biomass bearing material attached to the edges of the flights. This structure is a number of projecting tooth like points and paddles.
대표청구항▼
I claim: 1. A biomass bearing material treatment pressure vessel, comprising: a generally cylindrical reaction vessel having first and second ends, said reaction vessel configured for rotation; a drive mechanism for causing rotation of the reaction vessel; one or more support tracks and wheels for
I claim: 1. A biomass bearing material treatment pressure vessel, comprising: a generally cylindrical reaction vessel having first and second ends, said reaction vessel configured for rotation; a drive mechanism for causing rotation of the reaction vessel; one or more support tracks and wheels for supporting said reaction vessel as it rotates; at least one access opening to an interior of said reaction vessel, and through which biomass bearing material may pass; a door for closing said access opening; a door sealing system operatively associated with said door for sealing said door to said vessel at said access opening and for maintaining a pressure differential between the interior of said vessel and an exterior thereof; at least one flight of auger vanes on an interior wall of said reaction vessel and extending into the interior of said vessel in a plane, for moving biomass bearing material within said vessel from said first end to said second end of said reaction vessel, and from said second end to said first end of said reaction vessel, said auger vanes having a base edge attached to an interior vessel wall, and a top edge, said top edge of said auger vanes defining a bore oriented parallel to an axis of the reaction vessel, said top edge further including a plurality of paddles extending into said bore in the same plane as said auger vane; and a plurality of sparging lines operably connected to an interior of said vessel for injecting steam into said vessel. 2. The biomass bearing material treatment pressure vessel of claim 1 in which said cylindrical reaction vessel is configured for adjustability of the angle from horizontal. 3. The biomass bearing material treatment pressure vessel of claim 1 in which said cylindrical reaction vessel is configured for rotation at an angle of approximately 3-15 degrees from horizontal. 4. The biomass bearing material treatment pressure vessel of claim 1 in which said cylindrical reaction vessel is configured at an angle of approximately 4-8 degrees from horizontal. 5. The biomass bearing material treatment pressure vessel of claim 4 in which said cylindrical reaction vessel includes a single access door. 6. The biomass bearing material treatment pressure vessel of claim 1 in which said cylindrical reaction vessel is configured at an angle of approximately 6 degrees from horizontal. 7. The biomass bearing material treatment pressure vessel of claim 1, which further includes a rotary manifold operably connected to the sparging lines for injecting steam into said sparging lines while said vessel is rotating. 8. The biomass bearing material treatment pressure vessel of claim 1 which further includes an effluents condensation system operably connected to the reaction vessel comprising a steam eductor and a barometric condensing chamber. 9. The biomass bearing material treatment pressure vessel of claim 1 which further includes a swing away door assembly adjacent said access opening, with said door assembly comprising: a swing away door; a davit assembly for supporting said swing away door, said davit assembly comprising a generally vertical davit upright, which supports and is rotatably connected to a generally horizontal door support arm, said support arm having a first end and a second end, said first end having a counterweight, and said second end being attached to said door; wherein said davit assembly is configured to rotate about said davit upright, so that said door may be rotated away from or toward said access opening. 10. The biomass bearing material treatment pressure vessel of claim 1 which further includes one or more chain sections attached to said vessel, so that when said vessel rotates, said one or more chains agitate and shred said biomass bearing material. 11. The biomass bearing material treatment pressure vessel of claim 1 which is configured to rotate in one direction to load and pulverize biomass bearing material and is reversible to rotate in an opposite direction to unload and further shred said biomass bearing material. 12. The biomass bearing material treatment pressure vessel of claim 1 in which said door sealing system comprises a first locking rim surrounding said access opening on the reactor vessel; a second locking rim on said door for placement adjacent the first locking rim, and a clamp collar for sealing the locking rims together and holding said door over the access opening. 13. The biomass bearing material treatment pressure vessel of claim 12, in which said clamp collar further comprises a first section and a second section, and one or more joining devices for joining the first section with the second section. 14. The biomass bearing material treatment pressure vessel of claim 13, in which the joining device is one or more clamp screws which draw the first and second sections together, and hold them together until released. 15. The biomass bearing material treatment pressure vessel of claim 14, which further comprises two clamp screws, which draw the first and second sections together at the ends of each section. 16. The biomass bearing material treatment pressure vessel of claim 15, in which the two clamp screws are driven by one or more motors to open and close said clamp collar by moving said first and second sections of said clamp collar towards or away from each other. 17. The biomass bearing material treatment pressure vessel of claim 1 wherein said bore has a diameter measuring approximately one third of the diameter of the reaction vessel at a corresponding point. 18. A biomass bearing material treatment pressure vessel, comprising: a generally cylindrical reaction vessel having first and second ends, said reaction vessel configured for rotation and held at an angle of approximately 6% from horizontal; a drive mechanism for causing rotation of the reaction vessel; one or more support tracks and wheels to support said reaction vessel as it rotates; a single access opening in said reaction vessel, through which biomass bearing material may pass; a door for closing said access opening; a door sealing system operatively associated with said door for sealing said door to said vessel at said access opening and for maintaining a pressure differential between the interior of said vessel and an exterior thereof; at least one flight of auger vanes on an interior wall of said reaction vessel and extending into the interior of said vessel in a plane, for moving biomass bearing material within said vessel from said first end to said second end of said reaction vessel, and from said second end to said first end of said reaction vessel, said auger vanes having a base edge attached to an interior vessel wall, and a top edge, said top edge of said auger vanes defining a bore oriented parallel to an axis of the reaction vessel, said top edge further including a plurality of paddles extending into said bore in the same plane as said auger vane; and a plurality of sparging lines operably connected to an interior of said vessel for injecting steam into said vessel. 19. The biomass bearing material treatment pressure vessel of claim 18 in which said paddles are generally rectangular in shape and attached to said auger vanes with support posts. 20. The biomass bearing material treatment pressure vessel of claim 18 in which said paddles are spaced apart from said auger vane. 21. The biomass bearing material treatment pressure vessel of claim 18 wherein said bore has a diameter measuring approximately one third of the diameter of the reaction vessel at a corresponding point. 22. A biomass bearing material treatment pressure vessel, comprising: a generally cylindrical reaction vessel with a first end and a second end, with said reaction vessel configured for rotation at an angle selected by the operator; a drive mechanism for causing rotation of the reaction vessel; an access opening in said reaction vessel, through which product may enter and/or exit said reaction vessel; one or more flights of auger vanes on the interior wall of said reaction vessel, for moving product in said reaction vessel, with the auger vanes having a base edge attached to a interior vessel wall, and a top edge, wherein said top edge further includes a plurality of paddles extending into said bore in the same plane as said auger vane; a plurality of sparging lines operably connected to an interior of the reaction vessel for injecting steam into the interior of the vessel; a self aligning door sealing assembly, comprising: a swing away door; a first locking rim surrounding said access opening on the reactor vessel; a second locking rim on said door for placement adjacent the first locking rim; and a clamp collar for drawing said locking rims together and for forming a seal between said door and said access opening for maintaining a pressure differential between the interior of said vessel and an exterior thereof and producing a seal facilitating a buildup of pressure inside the reaction vessel. 23. The biomass bearing material treatment pressure vessel of claim 22, which further comprises a davit assembly for supporting said swing away door, said davit assembly comprising a generally vertical davit upright, which supports and is rotatably connected to a generally horizontal door support arm, said support arm having a first end and a second end, said first end having a counterweight, and said second end being attached to said access opening door; wherein said davit assembly is configured to rotate about said davit upright, so that said access opening door may be rotated away from or toward said access opening, and when adjacent said access opening, said door sealing system can seal said door to said access opening. 24. The biomass bearing material treatment pressure vessel of claim 23, in which said davit is configured to remain attached to the door as the door is opened and closed, and moved away from the reaction vessel. 25. The biomass bearing material treatment pressure vessel of claim 22, in which said clamp collar further comprises a first section and a second section, and one or more joining devices for joining the first section with the second section. 26. The biomass bearing material treatment pressure vessel of claim 22, in which the joining device is one or more clamp screws which draw the first and second sections together, and hold them together until released. 27. The biomass bearing material treatment pressure vessel of claim 26, in which said joining device further comprises two clamp screws, which draw the first and second sections together at the ends of each section. 28. The biomass bearing material treatment pressure vessel of claim 27, in which said two clamp screws are driven by one or more motors to open and close said clamp collar by moving said first and second sections of said clamp collar toward or away from each other. 29. The biomass bearing material treatment pressure vessel of claim 22, in which said first locking rim and said second locking rim each further comprise a bevel edge on a side opposite a contact side of each, and said clamp collar comprises two matching bevel surfaces which guide and force said locking rims into alignment and pressure tight engagement.
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